agenttesla | 622314078d28b0207d233d56ffd54de12e588cc1f2f430c081a8a984b3362069

Analysis

max time kernel
142s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01-06-2024 01:30

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General

Target

PO00211.exe
Size

717KB
MD5

a4d4780d7703925eff77e36e2485b5f6
SHA1

b61654691da57abecd6a4a1fe937a0cb3d51926a
SHA256

fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3
SHA512

43ffd31603200dcf8277851be8a40cc8bb2314c3e5815ca2805a8c0c05af259578e5cdaaf7551481b6641574f0927ba3cd1717fed456fffcc7eeb714a49498e8
SSDEEP

12288:LPOAef9Bz9TsGVtslqGunI1pj5esrZv/3v1VWCcbl3CisyCY2nBr2nLTMO+hg3kR:qhAlqGj9xZvPNEHhSi/u2nLT6hgi

Score

10^/10

agenttesla execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.formosabag.co.id
Port:
587
Username:
[email protected]
Password:
@2022exim02^^**

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.formosabag.co.id
Port:
587
Username:
[email protected]
Password:
@2022exim02^^**
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral2/memory/1300-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

resource	yara_rule
behavioral2/memory/1300-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral2/memory/1300-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/1300-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/1300-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/1300-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4572	powershell.exe
4588	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	PO00211.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YxAesh = "C:\\Users\\Admin\\AppData\\Roaming\\YxAesh\\YxAesh.exe"	PO00211.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
43	api.ipify.org
44	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4416 set thread context of 1300	4416	PO00211.exe	106

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
4416	PO00211.exe
1300	PO00211.exe
1300	PO00211.exe
1300	PO00211.exe
4588	powershell.exe
4572	powershell.exe
4588	powershell.exe
4572	powershell.exe
4588	powershell.exe
4572	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4416	PO00211.exe
Token: SeDebugPrivilege	4572	powershell.exe
Token: SeDebugPrivilege	4588	powershell.exe
Token: SeDebugPrivilege	1300	PO00211.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1300	PO00211.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 4572	4416	PO00211.exe	100
PID 4416 wrote to memory of 4572	4416	PO00211.exe	100
PID 4416 wrote to memory of 4572	4416	PO00211.exe	100
PID 4416 wrote to memory of 4588	4416	PO00211.exe	102
PID 4416 wrote to memory of 4588	4416	PO00211.exe	102
PID 4416 wrote to memory of 4588	4416	PO00211.exe	102
PID 4416 wrote to memory of 4596	4416	PO00211.exe	104
PID 4416 wrote to memory of 4596	4416	PO00211.exe	104
PID 4416 wrote to memory of 4596	4416	PO00211.exe	104
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106
PID 4416 wrote to memory of 1300	4416	PO00211.exe	106

C:\Users\Admin\AppData\Local\Temp\PO00211.exe
"C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4572
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\drpeBYm.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4588
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\drpeBYm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC7C0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4596
- C:\Users\Admin\AppData\Local\Temp\PO00211.exe
  "C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1300

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4024 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
1⤵
PID:1516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_simizx01.4id.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC7C0.tmp

Filesize
1KB

MD5
4457e66d837a41e4a380625c33aa4434

SHA1
c4a8b855fcae93aa35b1c65a0a8e4231827e5d4b

SHA256
712b7452bd68ca5ead8a5e992a3255d3f2d39d39d658d0806fa3aef51e53f588

SHA512
838ff5e9fa3bc27f05f8f6d2b73fc957e2b78fbc329afeb68ef9f860975f3dac283444984eb0adbf90b27d54ba4516955da6b10a6b961043ad7b2b156ac04daa

Download Submit
memory/1300-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1300-79-0x0000000006D50000-0x0000000006DA0000-memory.dmp

Filesize
320KB

Download
memory/4416-4-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4416-6-0x00000000051C0000-0x00000000051D8000-memory.dmp

Filesize
96KB

Download
memory/4416-7-0x00000000051E0000-0x00000000051F0000-memory.dmp

Filesize
64KB

Download
memory/4416-8-0x0000000007A80000-0x0000000007B04000-memory.dmp

Filesize
528KB

Download
memory/4416-9-0x0000000008E70000-0x0000000008F0C000-memory.dmp

Filesize
624KB

Download
memory/4416-10-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/4416-11-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4416-5-0x0000000004C50000-0x0000000004C5A000-memory.dmp

Filesize
40KB

Download
memory/4416-3-0x0000000004C80000-0x0000000004D12000-memory.dmp

Filesize
584KB

Download
memory/4416-2-0x0000000005230000-0x00000000057D4000-memory.dmp

Filesize
5.6MB

Download
memory/4416-28-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4416-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/4416-1-0x00000000001B0000-0x0000000000264000-memory.dmp

Filesize
720KB

Download
memory/4572-27-0x0000000005FE0000-0x0000000006046000-memory.dmp

Filesize
408KB

Download
memory/4572-67-0x0000000006D20000-0x0000000006D3E000-memory.dmp

Filesize
120KB

Download
memory/4572-89-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4572-26-0x0000000005770000-0x00000000057D6000-memory.dmp

Filesize
408KB

Download
memory/4572-12-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4572-17-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4572-16-0x00000000051A0000-0x00000000051D6000-memory.dmp

Filesize
216KB

Download
memory/4572-14-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4572-77-0x0000000007DC0000-0x0000000007E56000-memory.dmp

Filesize
600KB

Download
memory/4572-49-0x0000000006860000-0x00000000068AC000-memory.dmp

Filesize
304KB

Download
memory/4572-74-0x0000000007B40000-0x0000000007B5A000-memory.dmp

Filesize
104KB

Download
memory/4572-73-0x0000000008180000-0x00000000087FA000-memory.dmp

Filesize
6.5MB

Download
memory/4572-52-0x0000000070B50000-0x0000000070B9C000-memory.dmp

Filesize
304KB

Download
memory/4588-47-0x0000000005D70000-0x00000000060C4000-memory.dmp

Filesize
3.3MB

Download
memory/4588-21-0x0000000005360000-0x0000000005988000-memory.dmp

Filesize
6.2MB

Download
memory/4588-51-0x0000000070B50000-0x0000000070B9C000-memory.dmp

Filesize
304KB

Download
memory/4588-50-0x00000000067B0000-0x00000000067E2000-memory.dmp

Filesize
200KB

Download
memory/4588-76-0x0000000007580000-0x000000000758A000-memory.dmp

Filesize
40KB

Download
memory/4588-48-0x00000000061C0000-0x00000000061DE000-memory.dmp

Filesize
120KB

Download
memory/4588-78-0x0000000007850000-0x0000000007861000-memory.dmp

Filesize
68KB

Download
memory/4588-72-0x0000000007480000-0x0000000007523000-memory.dmp

Filesize
652KB

Download
memory/4588-80-0x0000000007880000-0x000000000788E000-memory.dmp

Filesize
56KB

Download
memory/4588-81-0x0000000007890000-0x00000000078A4000-memory.dmp

Filesize
80KB

Download
memory/4588-82-0x00000000078E0000-0x00000000078FA000-memory.dmp

Filesize
104KB

Download
memory/4588-83-0x00000000078D0000-0x00000000078D8000-memory.dmp

Filesize
32KB

Download
memory/4588-20-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4588-25-0x0000000005240000-0x0000000005262000-memory.dmp

Filesize
136KB

Download
memory/4588-88-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download